Progressive Suspension Fork Lowering Kit 10-1561Lifetime manufacturers warranty against sag or breakage Progressive rate fork springs soak up small bumps yet are firm enough to absorb the larger ones Rates of the progressively wound springs have been designed to fit each model Spring rates have been chosen to reduce front end dive under braking Gives the cruiser a low custom look when combined with a shorter than stock rear shock Allows the rider to lower his bike 1in. or 2in. Comes with